Received: 31 May 2018
Accepted: 30 October 2018
First Online: 16 November 2018
Ethics approval and consent to participate
: The study was approved by the institutional review board of the Al Imam Mohammad ibn Saud Islamic University (IMSIU). Written informed consent forms were distributed to the participants. We enrolled only those who agreed to participate in the study. Incomplete questionnaires were not included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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